Autoimmune Diseases: In autoimmune disorders, the immune system mistakenly targets and attacks the body's own healthy cells and tissues, thinking they are foreign invaders. Examples include rheumatoid arthritis, lupus, and multiple sclerosis.
Allergies: Allergies occur when the immune system overreacts to harmless substances (allergens) like pollen, pet dander, or certain foods. This exaggerated response leads to symptoms like sneezing, itching, and swelling.
Immunosenescence: As people age, their immune system may weaken, making them more vulnerable to infections and less responsive to vaccinations.
Hypersensitivity Reactions: These are severe and sometimes life-threatening immune responses, such as anaphylaxis, which can occur in response to certain allergens or medications.
Immunotherapies: In some cases, intentional suppression of the immune system is necessary, for instance, to prevent organ rejection after a transplant or to treat autoimmune diseases.
Maintaining a healthy lifestyle, including a balanced diet, regular exercise, and adequate rest, can help support the immune system's proper functioning. In case of persistent